mcadams



No. 6l2,l70. Patented Oct. ll, I898.

W. A. MGADAMS.

SASH FASTENER. (Application filed Mar. 11, 1897.)

2 Sheets-Sheet I.

(No Model.)

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1- Noam: mans co. womum No. 6l2,l70. v Patented Oct; ll, l898.

W. A. MCADAMS.

SASH FASTENER.

(Application filed Km. 11, 1897.) (No Model.) 2 Sheets-Sheet 2.

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U T D STATES PATENT 'OFFIcE.

IVILLIAM A. MGADAMS, OF NEIV YORK, N. Y.

SASH-FASTEN ER.

SPECIFICATION forming part Of Letters Patent N0. 612,170, dated October11, 1898.

Application filed March 11,1897. Serial No. 626,913. (No model.)

To (I/ZZ whom it mag concern.-

Be it known that I, WILLIAM A. MCADAMS, of New York, (Brooklyn,) in thecounty of Kings and State of New York, have invented a new and usefulImprovement in Sash-Fasteners, of which the following is aspecification.

My invention relates to an improvement in sash-fasteners, one objectbeing to provide a so-called burglar-proof sash-fastener, by means ofwhich the upper and lower sashes may be securely fastened in any desiredposition relative to the casing, the lower sash being adapted to besecured directly to the casin g either closed or in any raised positionwithin a limited scope and the upper sash being adapted to be secureddirectly to the lower sash either closed or in any desired loweredposition within a limited scope.

A further object is to provide certain improvements in the structure ofthe sash-fasteners, so that the window is locked and released in animproved manner and the parts are effectually shielded from the outsideof the window, so that it is practically impossible to release thefasteners from the outside.

A further object is to provide a fastener which will be very simple inconstruction, cheap to make, and yet verystrong to enable it tosuccessfully withstand the hard knocks to which it is liable to besubjected.

A practical embodiment of my invention is represented in theaccompanying drawings, in Wl'llCll- Figure 1 represents an inside viewof a window and its casing, the lower and upper sashes of the windowbeing represented in full lines as closed or locked, the lower sashbeing shown slightly raised and the upper sash slightly lowered indotted lines. Fig. 2 is a transverse section in the plane of the line 22 of Fig. 1. Fig. 3 is an end view of one of the locking members of thefastener. Fig. 4 is a longitudinal vertical section in the plane of theline i t of Fig. 3. Fig. 5 is a top plan view of the form shown in Fig.3. Fig. 6 is an end View of the other locking member of the fastener.Fig. 7 is a longitudinal vertical section in the plane of the line 7 7of Fig. 6, and Fig. 8 is a top plan view of the form shown in Fig. 6.

The window-casing is denoted by A, the

' lower sash by B,and the upper sash by C. The

sash-fastener is shown as comprising two independent locking members DD, the several parts of each of the said members of the fastenercorresponding to each other in regard to operation, but being ofslightly different form to adapt them each to its particular positionupon the lower sash B. Each of the fastening members D D is secured uponthe top of the lower sash B, at or near opposite sides of the sash inthe present instance. The fastening member D is so located that its boltwill be adapted to enter open-ended notches e in the notched rack E,secured to the casing A, adjacent to the lower sash B, and extendingupwardly a short distance beyond the top of the same. The fasteningmember Dis so located that its locking-bolt is adapted toenteropen-ended notches f in the rack-bar F, secured along one of theside rails of the upper sash C and extending from a point near itsbottom to a point near its top.

Proceeding to describe the fastening member D of the sash-fastener,which member is represented in detail in Figs. 3, 4, and 5, thebase-plate is denoted by G, and it is provided with a suitableopen-ended socket g for the reception of the sliding bolt H. Theopenended socket g is provided with longitudinal grooves g 9 along itssides and a groove g along its bottom, so that the sliding bolt H, whichis preferably rectangular in cross-section, is caused only to engage thesaid socket at its edges, which construction enables the socket-plate Gand the bolt H to be used after casting and without the necessity offinishing or filing oif the said parts. The plate G is adapted to besecured firmly to its support by means of screws I, which pass throughthe plate G along its depressed groove 9 in the socket g. By causing thescrews I to secure the plate G at this particular point I am enabled toprocure a double functionviz., first, when the plate H is in position itefiectually prevents the said screws from being removed, and, secondly,the said screws do not need to be so carefully fitted that their headswill have to be forced down below the bottom of the groove 9 as thebottom of the said groove is spaced from the bottom of the bolt II, asclearly shown in Fig. 3. The plate G is further provided with alaterally-extended lug g, which is adapted to receive a screw 11, whichscrew serves the double function of a stop or abutment for thebolt-operating mechanism and also to more securely fasten the plate G toits support.

The mechanism for sliding the bolt H into and out of engagement with thenotches f is as follows: A hood projects upwardly and laterally from thebolt H, the said hoodbeing preferably formed integral with the saidbolt-as, for instance, by making the same in a single castin g. Th'ehoodconsists of a suitable web It and a laterally-extended circumferentialportion or rim h, whichcircumferential portion of the hood serves toguard the locking-disk from View, except from the interior, when thefastening member is in position. The web 71 is extended downwardly toform a suitable lug 7L2, which lug is in position to permit the bolt andhood to have a limited sliding movement when between the screw 7 andanother suitable abutment g ,extended laterally from the side of theplate G upon the same side upon which the lug g is located.

The locking-disk hereinbefore referred to is denoted by J, and it isprovided with a suitable operating handle or knob j, extending inwardlytherefrom, and it is also provided with a stub-axle or neck j, whichextends forwardly from the disk and serves as a bearing or pivot pin, bymeans of which the said disk is mounted to'rotate on the said web h. Therotary locking-disk J is mounted on the said web it in the presentinstance by passing a suitable collarj around the end of the saidstub-axle which projects through the opposite side of the Web and thenspreading or upsetting the end of the stub-axle, as shown atj The disk,its handle, and the stub-axle are preferably cast in a single piece. Thedisk J is provided with a suitable notch j in its periphery, which notchis to be used to re lease the locking-bolt, as will hereinafter appear.

The plate G is provided along one side with a suitable track 9 whichextends from its inner end to a point near the abutment g a socket 9being thereby formed between the said abutment g and the outer end ofthe track g. The top of the track 9 is adapted to engage the bottom ofthe web has the bolt H is slid forwardly and backwardly for looking andreleasing the same, so that any blows to which the said web portion maybe subjected when the sash B is raised to its full movement will bereceived directly on top of the said track when the fastener isunlocked, whereby any tendency of the web portion to break off from thebolt is obviated. hen the bolt is in its thrown or locked position, thedisk J is adapted to enter the socket g and lock the said bolt. WVhen itis desired to release the bolt, the disk J is rotated until the notch 7'therein coincides withlthe track g, when the said bolt and its operatingmechanism may all be slid inwardly until stopped by the abutment c.

Proceeding to describe the locking member D, the several parts of thesaid member correspond to the parts hereinbefore described relative tothe member D. The web in this instance is projected upwardly andoutwardly 'upon the opposite sides of the bolt, and the disk and itsoperating-handle have the same form as in the member D. The track inthis particular form extends from the rear of the plate Ga distancetoward its front, and the abutment upon the plate is located at the rearend of the plate.

The portion of the rack F which is free from engagement with the side ofthe upper sash O is curved in cross-section, so that when the bolt H isengaged therewith to lock the two sashes together the said sashes arepermitted to have a lateral movement. The portion of the rack E which isnot engaged with the casing A is preferably extended at right anglesthereto. Because of the slots 0 being openended the locking-bolt in themember D is not held rigidly in position, the lower sash 13 havingthereby a limited lateral movement.

By constructing the locking members as above described it will be seenthat they may beimmediately locked and unlocked from the inside by aperson who may readily perform the necessary operations by the sense oftouch, if so desired-for instance, in the dark. Again, by mounting thebolt-operating parts at a point to the side of the locking-bolt I amenabled to have plenty of room to grasp the handle or knob of thelocking-disk for operating the same. Furthermore, it will be seen thatthe screws which secure the plate in position are effectually guarded bythe sliding bolt, and when sash C is locked opensix oreightinches,forinstance-a person on the outside cannot reach in with along screw-driver and take the members off or reach the combination toundo it or remove all the screws that secure the rack F, as it is thenlowered into a safe position between the sashes. The parts of themembers cannot become lost, as the sliding bolt and its operatingmechanism are allowed a limited sliding movement only because of theabutments on the base-plate.

The fastening as above described consists of a minimum number of parts,the said parts being so adjusted as to render them free from operationby a person exterior to the window, the several parts at the same timebeing very light, yet strong and not liable to break. Another greatadvantage is that the several parts may be cast and put up in the rough,thereby doing away with the necessity of finishing'or filing the roughedges of the same.

\Vhen both sashes of the window are closed, the member D only isnecessary to lock the window closed, as this member serves to lock twosashes against movement relative to each other; but when it is desiredto lock both sashes of the window open it is then necessary to use bothof the members of the fastening device. The fastening device D may belocated at the middle of the top of the lower sash l3, and the rack Fmay be secured along the central rail of the upper sash when such uppersash is provided with a central rail, if so desired.

It will be seen that the abutment 9 serves a double function-viz., as astop to limit the movement of the sliding bolt II in one direction andalso serving as an effectual guard or screen, whereby the combinationwhich looks and unlocks the bolt is entirely protected from View fromthe outside, thereby forming an additional safeguard to the rim h, whichprotects the periphery of the lockingdisk.

It is evident that slight changes might be resorted to in theconstruction and arrangement of the several parts without departing fromthe spirit and scope of my invention. Hence I do not wish to limitmyself strictly to the structure herein set forth; but

That I claim is- 1. In a sash-fastener, a suitable base-plate, alocking-bolt having a sliding movement therein and means for operatingthe bolt comprising a hood uprising from the bolt and a rotary diskcarried by the hood in position to be engaged with and disengaged fromthe said base-plate for locking and releasing the said bolt,substantially as set forth.

2. In a sash-fastener a base-plate, a locking-bolt fitted to slidetherein, means for operating the said bolt comprising a hood uprisingtherefrom, a rotary disk mounted in the hood in position to be engagedwith and disengaged from the base-plate for locking and releasing thebolt and abutments on the baseplate in position to engage the said hoodfor limiting the sliding movements of the bolt in both directions,substantially as set forth.

3. In a sash-fastener, a base-plate, a lockin g-bolt fitted to slidetherein, a hood-projecting from the said bolt, the said hood comprisinga web portion and a laterally-extended rim, and a rotary disk mounted inthe web and within the plane of the edge of the said rim, the saidrotary disk being mounted in position to be engaged with and disengagedfrom the base-plate for locking and releasing the said bolt,substantially as set forth.

4. In a sash-fastener a base-plate having a track and a recess adjacentthereto, a locking-bolt fitted to slide within the said baseplate, and alocking-disk mounted to rotate on a horizontal axis parallel to thetrack in a support carried by the said bolt, the said disk beingprovided with a notch in its periphery and being mounted in position tohave its periphery enter the said recess in the baseplate to lock thebolt, the notch in the disk being so located that when the disk isrotated the notch will coincide with the track upon the base-plate forpermitting the locking-bolt to be released, substantially as set forth.

5. The combination with the upper and lower sashesof a window, ofasash-fastener comprising a base-plate secured to the lower sash, alocking-bolt having a sliding move ment therein and means carried by thelocking-bolt for lockin g it to and releasing it from the base-plate,and a rack-bar secured along one of the side rails of the upper sash,the said rack-bar having its free portion curved inwardly toward thelower sash and provided with open-ended notches adapted to receive thesaid bolt and at the same time permit the sashes to have a limitedlateral movement relative to each other while the bolt is still retainedwithin its notch, without injury to the said side rail of the uppersash, substantially as set forth.

6. In a sash-fastener, a base-plate, a locking-bolt fitted to slidetherein, a suitable support uprising from the bolt, a rotary lockingdiskhaving a bearing-stem mounted in said support, and a disk-operatinghandle or knob, the said knob and bearing-stem both being formedintegral with the said disk, substantially as set forth.

7. In a sash-fastener, a baseplate provided with a track, a locking-bolthaving a sliding movement within the base-plate and means for operatingthe bolt comprising a hood uprising therefrom, the web of which isadapted to rest on the track when the bolt is in its unlocked position,and a locking-disk carried by the said hood, substantially as set forth.

IVILLIAM A. MCADAMS.

